Controversy in the press surrounding "Da Vinci Code" author Dan Brown, just beginning to fade, will likely revive later this week when the July issue of Vanity Fair hits the stands. According to an advance copy, the magazine's contributing editor Seth Mnookin alleges -- in a massive article titled "DaVinci Clone?" -- two new instances of possible plagiarism in Brown's past. Two textual analysis experts also tell him they believe Brown borrowed the plot for his book from Lewis Perdue's "Daughter of God." The two libel experts say they are convinced Brown borrowed heavily from the Perdue book, despite Brown's...